<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        ul li {
            list-style: none;
            float: left;
            width: 100px;
            height: 50px;
            line-height: 50px;
            text-align: center;
            background-color: pink;
            margin: 10px;
        }

        ul li:hover {
            transition: all 0.5s;
            background-color: #fff;
            color: blue;
        }
    </style>
</head>

<body>
    <ul>
        <li>天猫小店</li>
        <li>天猫超市</li>
        <li>天猫国际</li>
    </ul>
</body>

</html>